Perspective of the development direction of China's plastics machinery industry

The plastics machinery industry is a machinery manufacturing industry that provides important technical equipment for the plastic raw material industry and the plastics product processing industry. China's plastic machinery began in the late 1950s. In 1958, China's first injection molding machine was born in Shanghai, unveiling a new page for China's own manufacturing of plastic machinery. However, at the time, the production of injection molding machines had a low technological content, and only general-purpose plastics were used to produce daily necessities with lower technical requirements, such as plastic boxes, plastic buckets, and plastic pots. With the development of China's petrochemical industry, China’s plastics mechanics has gradually formed an independent industrial sector and begun to take shape. It is an important part of the national machinery industry. In particular, since the reform and opening up, China’s plastics machinery industry has obtained A great deal of development.



China's plastic machinery industry basic national conditions



At present, there are more than 400 major plastics machinery manufacturers in China, most of which are located in the southeastern coastal areas, the Pearl River Delta, and the Yangtze River Delta. Among them: injection molding machine manufacturing enterprises are mainly concentrated in Zhejiang, Guangdong, followed by Jiangsu, Shanghai, Guangxi and other places; extruder manufacturing companies are mainly distributed in Shandong, Liaoning, Jiangsu, Gansu, Henan, Beijing and other places; hollow molding machine manufacturers Mainly concentrated in Shaanxi, Shanghai, Jiangsu, Guangxi and other places; Tibet, Xinjiang, Qinghai, Ningxia, Hainan, Chongqing and other provinces and cities so far no plastic machinery manufacturing enterprises. In all 194 mechanical and industrial industries in the country, the major economic indicators of the plastics machinery industry are in the front rank. At present, plastic machinery that can be produced in China can basically meet the general technical equipment required for the processing and forming of polymer synthetic materials. On the whole, it is comparable to Hong Kong and Taiwan in China. Some of them are close to or have reached the level of industrial advanced countries, and some of them are world leaders.

In recent years, China's plastic machinery has become one of the most rapidly developing industries in the traditional machinery manufacturing industry, with an annual demand of 8.5 billion yuan. Experts predict that in the next 15 years, China's plastics machinery industry will continue to grow rapidly.

Historical statistics show that the increase in the output of plastic products has led to an increase in sales of plastic machinery. For example, from 1991 to 1999, the average annual increase in the output of plastic products was 2661%, and the sales of plastic machinery increased by 1738% over the same period. The long-term plan of China's plastics industry will reach 25 million tons of plastic products by 2005, and the total output in 2015 will double to 50 million tons. The good development prospect of the plastics processing industry will continue to be the main driving force for the rapid development of China's plastics industry.

The "12th Five-Year Plan" development plan for China's plastics machinery industry will focus on the six major fields of precision casting equipment and energy-saving plastic molding and processing equipment. By 2015, China's plastics machinery industry will master a number of core technologies with independent intellectual property rights, upgrade a group of industrial clusters with distinctive and well-known brands, and realize the transformation of the plastics machinery industry from big to strong.

Plastic machine equipment has penetrated all walks of life

Building materials industry: In this industry sector, the plastics machinery industry is mainly used for the production of sewage pipes, water pipes, various decoration materials, floors, carpets, different materials for doors and windows, waterproofing membranes, trunkings, line tubes, etc. Provide equipment.

Packaging Industry: The plastics machinery industry provides equipment for the production of plastic packaging products such as various packaging films, sheets, bottles, cylinders, boxes, drums, boxes, woven bags, mesh covers, turnover boxes, trays, etc. This kind of plastic packaging products involves a wide range of industries, such as: beverage, food, chemical, cement, feed, aquatic products, fruits, hardware tools, clothing, instruments, pharmaceuticals and other industries that produce almost all products.

Electrical and electronic information industry: refrigerators, washing machines, air conditioners, video cameras, tape recorders, televisions, stereos, small appliances, computers, printers, facsimile machines, mobile phones, telephones, and other products of the chassis, accessories, transmission lines The production of sockets, etc., and the production of various types of optical discs (CDs, VCDs, DVDs, CD-Rs, CD-RWs, DVD-Rs, DVD-RWs, HDVDs) for information carriers are provided by the plastics machinery industry.

Automobiles and other transportation (trains, ships, aircrafts, and spacecrafts) Industry: Automobile safety equipment, dashboards, special electrical appliances (audio, air conditioning), coated parts, interior trim parts, heat and pressure resistant oil hoses, fuel tanks, seals The production of plastic articles, luggage, seats, furniture, door sill plates, dust-proof plates, airbag cover rubbers, and under-floor cushions... all require the plastics machinery industry to provide them with production equipment.

Agriculture: The production of greenhouses, double roofs, drainage and irrigation pipe systems, nursery films, light transmission or shading films, and fertilizer-retaining and protective films are required to provide equipment for the plastics machinery industry.

In addition to the above, there are still many departments that need plastic machinery industry to provide equipment, such as daily necessities, mechanical parts, toys, game machines, sporting goods, medical equipment, furniture and other industries.

Overall level to be improved

Some domestic plastics machinery enterprises have seized the golden opportunity in recent years and achieved a leap-forward development. They not only accounted for the larger domestic market share, but also exported a considerable number of products abroad. However, export products are mainly sold to developing countries. , Is a low-grade products. As far as the overall level of technology is concerned, the gap between China's plastic machinery and foreign developed countries is more than 20 years. In recent years, relying on imports of plastic machine equipment are: precision injection molding machine, one-step injection blowing unit, large diameter solid wall and corrugated pipe production line, geomembrane production line, biaxial stretch film production line, drip irrigation pipe production line, medical catheter production line, Audio-video-based and photosensitive film-based production lines, twin-screw compounding and granulation equipment, including petrochemical use of large twin-screw extrusion granulation equipment is basically completely dependent on imports. This has created a situation where sales of more than 20 plastics machinery companies in the country are equal to the total sales of thousands of domestic presses.

Large gap in mechanical performance

Compared with foreign products, China's plastic machinery performance in the injection molding, extrusion molding speed, accuracy of injection molding products and processing equipment control level there is a big gap. Foreign companies injection molding machine filling speed up to 500 ~ 1000m / s, blow molding 250ml beverage bottles stand-alone production can reach ~ one / hour, while the domestic production of the highest equipment for the 6000 ~ 8000 / hour; domestic extruder The average output of stand-alone machines is less than 60% of the foreign advanced level. The Nissei Corporation's ES series electric injection molding machine with a clamping force of 20-360 tons, the quality deviation of the molded products can be controlled within 0.00132g, the displacement control precision of the mold clamping mechanism can reach 003mm, and the temperature control accuracy can reach ±05. °C.

The level of plastic processing equipment depends largely on the level of measurement and control. Control systems of foreign advanced plastics machinery generally adopt programmable systems with PC, PLC, and PCC as the core, and adopt model control, statistical process control (SPC), and network-based remote control on some high-precision production equipment. Monitoring, fault diagnosis and control systems. In terms of advanced measurement systems, China basically relies on imports.

Technological innovation promotes development



The average per capita consumption of plastic products in China is only 14kg/year, ranking 70th in the world. Therefore, the demand for plastic products and plastic machinery will maintain a relatively high growth rate for a long time to come. This gives China's plastics machinery companies a good opportunity for development. At the same time, foreign plastics machinery companies are aiming at China, a huge market with great potential. They have already provided a large number of plastic machinery for China's plastic products factories and tried to occupy a higher market share and reduce the harmfulness of snow melting agents. However, domestic plastics machinery companies have very little investment in technological innovation, mainly taking the path of imitating domestic and foreign counterparts, and few have independent intellectual property rights. This has caused the domestic plastics machinery products to lag behind for a long time, and the domestic products are similar. At the same time, there are few specialized research institutes for plastics machinery in China, and there is a serious shortage of scientific research and innovation funding. With China's entry into the WTO, China has continued to improve its knowledge and technology property rights, increase investment in technological innovation, attract professional and technical personnel, achieve large-scale and professional production, and strive to shorten the huge gap in the level of domestic and foreign plastics machinery technology. Become a consensus of insight in the field of plastic machinery.